package world;
import world.square.*;

/**
 * Observing class. Part of the ObjectObserver pattern.
 * @author 	Frederic Mes, Wim Marynissen
 * @version	1.0
 */
public interface Observer {
	/**
	 * Update a subject.
	 * @param 	subject
	 * 			Subject to be updated.
	 */
	public void update(Subject subject);
}
